A gas chromatographic(GC) method was developed for the determination of 11 benzene and its analogies in correction fluid.The conditions for sample pretreatment and GC were investigated and optimized.The correction fluids were extracted with ethyl acetate.The extracts were centrifugalized and filtrated, and then determined by GC and quantified by the external standard method.The results showed that good linear relationships were found at an wide concentrations range of 1.0-200.0 mg/L for all analytes, with correlation coefficients(r2) of 0.999 2-0.999 9.The limits of detection(LOD) were all 1.0 mg/kg.The spiked recoveries ranged from 90% to 105%, with relative standard deviations(RSD, n=6) less than 6%.The results demonstrated that the method was simple, rapid and accurate. |